Lock-hinge



(No Model.)

T. SPRIGGS.

. LOCK HINGE. No. 395,086. Patented Dec. 25, 1888..

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a2 INVENTOR:

Q E nm 23 7 I I WITNESSES:

N. PETERS, Fiwto-Lilhngmphnr, Washington. a c.

UNITED STATES PATENT ()EEicE.

THOMAS SPRIGGS, OF MITCHELL, KANSAS.

LOCK -HINGE.

SPECIFICATION forming part of Letters Patent No. 395,086, dated December25, 1888. Application filed January 31, 1838. Serial No. 262,486. (Nomodel.)

To all whom it may concern.-

Be it known that I, THOMAS SPRIeGs, of Mitchell, in the county of Riceand State of Kansas, have invented a new and useful Improvement inDoor-Checks, of which the following is a full, clear, and exactdescription.

This invention relates to doorchecks for holding doors open, and has forits object to provide a door-check whereby a door may be securelyheldopen at different distances. The

invention consists in a door-cheek for this purpose constructed andarranged as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figurel illustrates the door-check with covering-plate removed appliedto a door and frame broken away. Fig. 2 is a horizontal section thereofon line as :11, Fig. 1. Fig. 3 is a central. vertical section thereo t.Figs. 4, 5, and 6 are detail. views of parts detached and broken away.

In the constructimi of this device abolt, 1, Formed with an enlargedportion, 2, having a number of sides, 3, employed,located in theenlarged portions of the straps (3, the enlarged portion 7 of strap orbar 8, and the enlarged portion 9 of strap or bar 10.

The door 11 and frame 12 are cut away to permit of the parts beingplaced in position and the straps 6 S fastened by screws 13. To the bolt1, cut away, as at 14, is pivoted the forked end 15 of a lever, 16,having an oval open portion, 17, in which is located cam 18, mounted onthe end of a rod, 19, passing through slot or hole in door 11 andprovided with an opening-handle, 21.

The lever 16 is formed with an arm, 22, having a slot, 23, looselymounted on a pin, 24, in plate 25, which is held in place by the screws13 and covers the lever 16 and cam 18. The

straps 6 are covered by a plate, 26, held in place by screws Theenlarged portions 1 and 9 are formed with round openings 27, in whichthe bolt 1 may slide or turn, while the enlarged portions 5 and 7 areformed with openings 28, adapted in shape to the enlarged portion 2 ofthe bolt 1 and permitting the latter to slide therein, but not to turn.In this way it will be seen that when the enlarged portion 2 of saidbolt engages openings 5 and 7, as in Fig. 3, the door cannot turn on itshinges, but that when the portion 2 is raised clear of portion 5 thenthe door 11 is free to move.

In operating this device, the bolt 1 being in the posit-ion shown inFig. 1, the door is opened the desired distance, when the portion 2 ofbolt 1 will register with opening 28 in enlarged portion 5, and uponturning thehandle 21. the cam 18 will act upon lever 16 to slide bolt 1downward and throw enlarged portion 2 into engagement with opening 28,thereby lockin the door securely in the desired open position. Theenlarged portion 2 and the opening 28 maybe of such shape or with asmany corresponding sides as to lock the door at any angle desired.

\Vhile a specific construction of parts has been set forth, I do notintend to limit my self thmreto, as the bolt 1 may be operated by othermechanism than that shown, and the locking parts may be of differentform to accomplish. the same result. The invention. broadly covers avcrtically-sliding reciprocating bolt and operating mechanism mounted ona door and a socket mounted on the doorframe, the sliding bolt beingadapted to be thrown into and out of engagement with the socket to holda door located looked in different open positions.

Having thus described m y invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A door-check to hold doors in different open positions, consisting ofa socket-piece mounted on the door-frame and a socket-piece mounted onthe door, in combination with a vertically-sliding bolt having lockin gprojections adapted to engage the socket-pieces and a lever for operatinthe bolt, substantially as described.

2. A door-check to hold a door in different open positions, consistingof socket-pieces attached, respectively, to the door an d door-tram eand a verticallysliding bolt having an irregular enlarged portion, incombination with straps secured on the door and door-frame,

having irregular openings therein adapted to register With each other asthe door is moved and through which the bolt passes, substantially asdescribed.

3 The combination, with straps 10 and 8, secured to door 11 and havingenlarged portions 9 7, with sockets 27 2S, and straps 6, se cured todoor-frame 12 and having sockets 27 28, of bolt 1, having enlargedportion 2, with sides 3 and lever 16, having opening 17, cam 18, rod 19in socket 20, handle 21, and covering-plates 25 26, substantially asdescribed.

4. A door-check consisting of a verticallysliding locking-bolt having aprojection thereon and a lever and operating-handle located on the door,in combination with socketed straps having irregular openings therein,through which said bolt passes, substantially as described.

THOMAS SPRIGGS. Vitnesses:

JOHN W. MILLER, F. S. KINGDON.

